What is meant by electromagnetic induction?

Electromagnetic induction refers to the process in which a change in magnetic field within a closed loop or coil induces an electromotive force (EMF), resulting in the production of voltage. This phenomenon is fundamental to the operation of many electrical devices, including transformers and generators. According to Faraday's law of induction, the induced voltage is proportional to the rate of change of the magnetic field.

This process is a key principle in the generation of electrical energy, particularly in applications where mechanical energy is converted into electrical energy, and is critical in the design and operation of electrical circuits. Understanding electromagnetic induction is crucial for grasping how electrical energy is generated and transmitted in various technologies.